75307642 has 8 divisors (see below), whose sum is σ = 113014656. Its totient is φ = 37636092.

The previous prime is 75307633. The next prime is 75307657. The reversal of 75307642 is 24670357.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 75307598 and 75307607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2698 + ... + 12565.

It is an arithmetic number, because the mean of its divisors is an integer number (14126832).

Almost surely, 2^75307642 is an apocalyptic number.

75307642 is a deficient number, since it is larger than the sum of its proper divisors (37707014).

75307642 is a wasteful number, since it uses less digits than its factorization.

75307642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17732.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 75307642 is about 8677.9975800872. The cubic root of 75307642 is about 422.2921578471.

Adding to 75307642 its reverse (24670357), we get a palindrome (99977999).

The spelling of 75307642 in words is "seventy-five million, three hundred seven thousand, six hundred forty-two".